# UBUNTU 20.10: the CLI application cannot interact with the OnlyKey

**URL:** <https://onlykey.discourse.group/t/ubuntu-20-10-the-cli-application-cannot-interact-with-the-onlykey/339>\
**Category:** Uncategorized\
**Created:** [April 4, 2021, 7:38pm UTC](https://onlykey.discourse.group/t/ubuntu-20-10-the-cli-application-cannot-interact-with-the-onlykey/339 "2021-04-04T19:38:30Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![denis.beurive](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@denis.beurive](https://onlykey.discourse.group/u/denis.beurive)\
**Post date:** [April 4, 2021, 7:38pm UTC](https://onlykey.discourse.group/t/ubuntu-20-10-the-cli-application-cannot-interact-with-the-onlykey/339/1 "2021-04-04T19:38:30Z")

</div>

Hello,

- **OS** : Ubunto `20.10`.

Details:

```
denis@labo:~$ lsb_release -a 
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 20.10
Release:	20.10
Codename:	groovy

```

I followed [these instructions](https://docs.crp.to/command-line.html)

Verifications:

```
denis@labo:~$ apt list --installed | grep libu2f-udev
libu2f-udev/groovy,groovy,now 1.1.10-1.1 all [installé]

denis@labo:~$ ls -l /etc/udev/rules.d/
total 72
-rw-r--r-- 1 root root 1717 avril 4 21:03 49-onlykey.rules
-rw-r--r-- 1 root root 817 avril 4 21:06 70-snap.onlykey-app.rules
-rw-r--r-- 1 root root 58549 oct. 22 16:18 70-snap.snapd.rules
-rw-r--r-- 1 root root 2272 avril 4 17:27 70-snap.snap-store.rules

```

And:

```
denis@labo:~$ sudo udevadm control --reload-rules && udevadm trigger
denis@labo:~$ echo $?
0

```

It seems that the OnlyKey is just not detected:

```
denis@labo:~$ /home/denis/.local/bin/onlykey-cli
OnlyKey CLI v1.2.4
Control-D to exit.

OnlyKey> version

OnlyKey CLI v1.2.4

OnlyKey> fwversion

OnlyKey> wink

OnlyKey> quit

```

> Please note: the OnlyKey never blinks.

Any suggestion ?

Regards,

Denis

---

<div class="post-metadata">

**Author:** ![denis.beurive](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@denis.beurive](https://onlykey.discourse.group/u/denis.beurive)\
**Post date:** [April 5, 2021, 6:53am UTC](https://onlykey.discourse.group/t/ubuntu-20-10-the-cli-application-cannot-interact-with-the-onlykey/339/2 "2021-04-05T06:53:03Z")

</div>

Finally, it works.

The problem was that I used an old USB hub. And, somehow, this hub seems to interfere with the device.

Please note that I tried a more recent USB hub and it works fine.

Thus the problem is related to the old USB hub, not to the OnlyKey.

For information :

```
denis@labo:~$ /home/denis/.local/bin/onlykey-cli
OnlyKey CLI v1.2.4
Control-D to exit.

OnlyKey> fwversion 

v2.1.0-prodc

OnlyKey> wink

OnlyKey> quit

```

Best regards,

Denis